Abstract
Lattice structures are unique architectural configurations with repeated unit cells and significant void spaces, offering exceptional specific strength, stiffness, and energy absorption capacity. These properties make them ideal for lightweight structures and mechanical dampers. Rapid investment casting, a blend of investment casting and 3D printing, emerges as a promising method for metal lattice structure production. It outperforms typical metal additive manufacturing, yielding products with fewer defects. A proposed cell topology has been introduced, striking an optimal balance between printability, castability, tensile strength, and shear strength. To explore its performance under compressive loading, 70/30 brass lattice structures with two varying heights were fabricated using rapid investment casting and evaluated. Shorter samples displayed uniform expansion within each cell row, while taller ones experienced abrupt shear fractures, resulting in lower absorbed energy. Detailed microstructure observations and additional mechanical properties were obtained, enhancing the understanding of failure behavior. In conclusion, rapid investment casting combined with the proposed cell topology opens exciting possibilities for manufacturing high-performance lattice structures with improved mechanical characteristics.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
